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Covering Space Diagram
Covering may refer to: * Window covering, material used to cover a window * Cover (topology), a collection of subsets of X whose union is all of X * Covering space, a map in the mathematical field of topology that locally looks like the projection of multiple copies of a space onto itself * Covering relation, a mathematical relation inside orderings which holds between comparable elements * Covering (martial arts), an act of protecting against an opponent's strikes * '' The Covering'', a studio album by American Christian heavy metal/hard rock band Stryper * '' Covering: The Hidden Assault on Our Civil Rights'', a 2006 book by Kenji Yoshini See also * * * Covering a base, in baseball * Covering sickness, a disease of horses and other members of the family Equidae * Coverage (other) * Cover (other) Cover or covers may refer to: Packaging * Another name for a lid * Cover (philately), generic term for envelope or package * Album cover, the front of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Window Covering
Window coverings are considered any type of materials used to cover a window to manage sunlight, privacy, additional weatherproofing or for purely Window treatment, decorative purposes. Description and design Window coverings comprise materials used to cover a window to manage sunlight, privacy, additional weatherproofing or for purely Window treatment, decorative purposes. Window coverings are typically used on the interior side of windows, but exterior solutions are also available. Window coverings may be used to manage overheating and glare issues due to sunlight. Designers may consider these variables in the context of visual comfort indices, which include light quantity (sufficient light to perform tasks), direct sunlight (which may lead to overheating), light uniformity (light distribution over the task plane), and glare. Window coverings can provide a sense of privacy. It is important to consider both privacy in terms of the view from the outside in and from the inside ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cover (topology)
In mathematics, and more particularly in set theory, a cover (or covering) of a set X is a family of subsets of X whose union is all of X. More formally, if C = \lbrace U_\alpha : \alpha \in A \rbrace is an indexed family of subsets U_\alpha\subset X (indexed by the set A), then C is a cover of X if \bigcup_U_ = X. Thus the collection \lbrace U_\alpha : \alpha \in A \rbrace is a cover of X if each element of X belongs to at least one of the subsets U_. Definition Covers are commonly used in the context of topology. If the set X is a topological space, then a cover C of X is a collection of subsets \_ of X whose union is the whole space X = \bigcup_U_. In this case C is said to cover X, or that the sets U_\alpha cover X. If Y is a (topological) subspace of X, then a cover of Y is a collection of subsets C = \_ of X whose union contains Y. That is, C is a cover of Y if Y \subseteq \bigcup_U_. Here, Y may be covered with either sets in Y itself or sets in the parent spac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Covering Space
In topology, a covering or covering projection is a continuous function, map between topological spaces that, intuitively, Local property, locally acts like a Projection (mathematics), projection of multiple copies of a space onto itself. In particular, coverings are special types of local homeomorphisms. If p : \tilde X \to X is a covering, (\tilde X, p) is said to be a covering space or cover of X, and X is said to be the base of the covering, or simply the base. By abuse of terminology, \tilde X and p may sometimes be called covering spaces as well. Since coverings are local homeomorphisms, a covering space is a special kind of étalé space. Covering spaces first arose in the context of complex analysis (specifically, the technique of analytic continuation), where they were introduced by Bernhard Riemann, Riemann as domains on which naturally multivalued function, multivalued complex functions become single-valued. These spaces are now called Riemann surfaces. Covering spa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Topology
Topology (from the Greek language, Greek words , and ) is the branch of mathematics concerned with the properties of a Mathematical object, geometric object that are preserved under Continuous function, continuous Deformation theory, deformations, such as Stretch factor, stretching, Torsion (mechanics), twisting, crumpling, and bending; that is, without closing holes, opening holes, tearing, gluing, or passing through itself. A topological space is a Set (mathematics), set endowed with a structure, called a ''Topology (structure), topology'', which allows defining continuous deformation of subspaces, and, more generally, all kinds of List of continuity-related mathematical topics, continuity. Euclidean spaces, and, more generally, metric spaces are examples of topological spaces, as any distance or metric defines a topology. The deformations that are considered in topology are homeomorphisms and Homotopy, homotopies. A property that is invariant under such deformations is a to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Covering Relation
In mathematics, especially order theory, the covering relation of a partially ordered set is the binary relation which holds between comparable elements that are immediate neighbours. The covering relation is commonly used to graphically express the partial order by means of the Hasse diagram. Definition Let X be a set with a partial order \le. As usual, let < be the relation on such that |
Comparability
In mathematics, two elements ''x'' and ''y'' of a set ''P'' are said to be comparable with respect to a binary relation ≤ if at least one of ''x'' ≤ ''y'' or ''y'' ≤ ''x'' is true. They are called incomparable if they are not comparable. Rigorous definition A binary relation on a set P is by definition any subset R of P \times P. Given x, y \in P, x R y is written if and only if (x, y) \in R, in which case x is said to be to y by R. An element x \in P is said to be , or (), to an element y \in P if x R y or y R x. Often, a symbol indicating comparison, such as \,,\, \geq, and many others) is used instead of R, in which case x < y is written in place of which is why the term "comparable" is used. Comparability with respect to induces a canonical binary relation on ; specifically, the induced by is defined to be the set of all pairs such that i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Covering (martial Arts)
Covering in martial arts is the act of protecting against an opponent's strikes by using the arms and shoulders to block and absorb the impact of strikes on the head and torso and prevent injury. Covering is the last line of defense to avoid an incoming strike and consists of putting arms and forearms up and in front of the area on the body that is being blocked. The technique of covering is widely used among martial arts and has a multitude of variations. Usage Covering is used as a defensive technique and can function on three levels of execution. The first level is for ''Physical Defense'' and is used to absorb an opponent's attacks, without the use of counter-attacks or evasive maneuvers. This done by putting hands in front of ones face to cover and serve as a shield. The second level of usage is ''Counter Defense'', which is a variation of covering that calls for the person covering to respond to the opponents' strikes with a strike while still maintaining cover on themse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Covering
''The Covering'' is the thirteenth release and eighth studio album by American Christian heavy metal/hard rock band Stryper, released by Big 3 Records/Sony on February 15, 2011. The album is a collection of twelve cover songs from bands that inspired Stryper and helped to shape the band's sound and musical identity. The album also includes "God", a new original recording. History The album was originally scheduled to be released on October 13, 2010. On October 22, 2010, it was announced on the band's official site that due to the feeling of the business and label team that more set-up time will allow for a stronger release, the album was projected to be released in the first quarter of 2011. On January 24, 2011 Michael Sweet announced via Twitter that the official release date for the album is February 15. Singles On September 14, 2010, it was announced that the album's first single, a cover of Black Sabbath's hit "Heaven and Hell", was available on iTunes. The second single, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Hidden Assault On Our Civil Rights
''The'' is a grammatical article in English, denoting nouns that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with nouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of the archaic pronoun ''thee' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Covering A Base
In baseball and softball, part of the infielders' and pitcher's jobs is to cover bases. That is, they stand next to a base in anticipation of receiving the ball thrown from another fielder, so that they may make a play on an opposing baserunner who is approaching that base. On a force play, the fielder covering the base stands with one foot on that base. In general, the first baseman covers first base, the second baseman or shortstop covers second, the third baseman covers third, and the catcher covers home plate. However, on ground balls hit to the first baseman away from first base, the pitcher will cover first base instead. On a ground ball to either the shortstop or the second baseman, the other of those will cover second base. With a runner on first base, when a ground ball is hit to the third baseman, second base will be covered by the second baseman, because unlike the shortstop he does not have to turn his back to the third baseman in order to get to second base. Likewi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Covering Sickness
Covering sickness, or dourine (French, from the Arabic ''darina'', meaning mangy (said of a female camel), feminine of ''darin'', meaning dirty), is a disease of horses and other members of the family Equidae. The disease is caused by '' Trypanosoma equiperdum'', which belongs to an important genus of parasitic protozoa. The occurrence of dourine is notifiable in the European Union under legislation from the OIE. There currently is no vaccine and although clinical signs can be treated, there is no cure. Parasite Out of the ''Trypanosoma'' genus, ''Trypanosoma equiperdum'' has been discovered to be most closely linked to ''Trypanosoma evansi'', so much so that even observation under microscope is not sufficient to differentiate between the two as their structure is very similar. Dourine has no known vectors or fomites existing in the natural world, being known only as a sexually transmitted disease of members of the equine family, including donkeys, mules, and horses. In a lab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coverage (other)
Coverage may refer to: Filmmaking * Coverage (lens), the size of the image a lens can produce * Camera coverage, the amount of footage shot and different camera setups used in filming a scene * Script coverage, a short summary of a script, written by script readers to recommend whether a film should be made Media and journalism * Broadcasting, radio, television, etc. * News ("press coverage", "media coverage"), the communication of selected information on current events Music * Coverage, a Descendents/ALL cover band from Calgary, Alberta, Canada * ''Coverage'' (album), a 2003 album by Mandy Moore Science and technology * Code coverage measure used in software testing * Coverage (telecommunication), a measure of cell phone or radio connectivity * Coverage (information systems), a measure for the quality/completeness of an information service * Coverage (shot peening), a criterion for quality of shot peening introduced by J.O. Almen in the 1940s * Coverage data, the mappin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
